File:SCR-270-trans-in-van-300.jpg

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English: Original Caption: Rear view of operating van of radio set SR-270 showing transmitter, water cooler, and spare oscilliscope.
  • This is the same equipment used by an SR-270 unit located at Opana point that detected the Pearl Harbor attacking planes 55 minutes prior to the attack.
  • alteration- this version has a border cropped which credits the photo to Lieutenant Zahl. Original at the above location.
  • This photo is credited to First Lieutenant Harold Zahl, who pioneered Radar use by the Army air corps. The photo appears in a paper by him from the period.
  • these photos would not have been saved were it not for Dr. Howard W. Andrews, who had the foresight to preserve them along with Lieutenant (Dr.) Zahl's papers for posterity. Credit and thanks to H.W. Andrews for preseving these photos.
Source http://www.monmouth.army.mil/historian/photolist.php?fname=Radio%2FSCR+270+and+271
Author Harold Zahl
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This file is a work of a U.S. Army soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.

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current09:49, 8 September 2006Thumbnail for version as of 09:49, 8 September 20061,310 × 929 (289 KB)Makthorpe (talk | contribs){{en| Original Caption: Rear view of operating van of radio set SR-270 showing transmitter, water cooler, and spare oscilliscope. *This is the same equipment used by an SR-270 unit located at Opana point that detected the Pearl Harbor attacking planes 55

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